package jflowsim.model.algebra.jama.util;public class Maths {   /** sqrt(a^2 + b^2) without under/overflow. **/   public static double hypot(double a, double b) {      double r;      if (Math.abs(a) > Math.abs(b)) {         r = b/a;         r = Math.abs(a)*Math.sqrt(1+r*r);      } else if (b != 0) {         r = a/b;         r = Math.abs(b)*Math.sqrt(1+r*r);      } else {         r = 0.0;      }      return r;   }}